Finding the Fourth Proportional to 112,856.52, 155,758.14 and 65,126.28

Step by Step Solution

1. Step 1: Write the proportion equation
   112,856.52 : 155,758.14 = 65,126.28 : x
2. Step 2: Convert to fraction form
   112,856.52/155,758.14 = 65,126.28/x
3. Step 3: Cross multiply
   112,856.52x = 155,758.14 × 65,126.28
4. Step 4: Simplify right side
   112,856.52x = 10,143,948,237.92
5. Step 5: Solve for x
   x = 10,143,948,237.92/112,856.52
6. Step 6: Final answer
   x = 89,883.58